What was the result of this discussion? Is there a problem with the model? Or the LT8471?
We are planning to use LT8471 chip for providing VCC to opamp i.e. operating at 12V and -12V
Is this IC is able to provide 12V,2A and -12V ,250mA or 500mA.
We are going to use this 12V,2A into designing 5V/1A 3.3 V/2A and 1.8V/1A using LT3514 chip.
I was looking at that one too in addition to the LT8471. 2 LT8580s just looked to be less complex at first glance. Maybe not. PCB area-wise maybe the LT3471? Although it would be nice if it could handle up to 18V input voltage.
Is it possible for LT8471 to handle 42V input and generate +/-20V bipolar output, 0.3-0.4A per rail? I was looking at figure 10A which is pretty much what I need, but the voltages are a bit off.
If it's possible, what should I change besides the feedback…
Unfortunately LTM8049 is not a good choice for this application. LTM8049 's max Vin is only up to 20 V.
I would suggest looking at LT8471 for your particular application
I downloaded the LTSpice schematic of the LT8471 eval board:
When running the simulation, everything is OK until about 6.65 ms and then both outputs start sagging…
You may also want to check ADP5070, ADP5071 or LT8471. Can produce dual positive and negative outputs from a single positive supply. Thanks!
I am using LT8471 in following configuration
Input Voltage 12V +/- 10%
Output 1: 15V, 250mA : Boost Topology
Output 2: -15V, 250mA : Single Inductor Inverting Topology
During LTSPICE Simulation, I am able to get desired output only when SS Capacitance…
What is the difference between LT8471EFE#PBF and LT8471IFE#PBF?